QUOTE(cthomas @ Nov 5 2007, 10:37 AM)

I would like to start a visual reference guide for the WWI era collar disk collector. I think the readily available reference material on these insignia is sparse at best. By 'readily available' I mean not easily accessible on the internet (at least I haven't had much luck!). The only good internet reference I've been able to find is on AGM's website but those are usually removed after being sold. Let's start a guide here so that we all know where to go if we need to ID a piece. If you are having trouble IDing a disk in your collection, even if it's of the type II variety (post WWI), post an image here and I will do my best (as I'm sure others will on this excellent forum) to help you out. It won't be necessary to post an image of the reverse unless it's somewhat unusual (i.e. French or German manufacture).
Thanks for the kind words Charles! We used to get hate mail from people angry that we left all of the items up on the web until the next catalog replaced them. And I do mean HATE mail. People can be downright vicious when they are not actually standing within pistol range of you. Recently I started experimenting with taking the sold stuff off periodically, and the other bunch of folks is now unhappy. HOWEVER.... that is all soon to change:
In a couple of months we will have all past item records up and available as an online database with extensive search and organization capability, a photo gallery reference, etc. Currently, that is over 30,000 individual items. In fact, I have a meeting with the web guys this coming Thursday to check on the progress of the project.
In the meantime, I will try to get a few of the 339th Infantry discs from my collection photographed to post here.
I would suggest that the reverse side is as important, if not sometimes more important than the front. When we got the last collection in of around 700+ discs, you could spot some real trends. For instance, Army Service Corps discs almost always have the smallest of screw posts with a small hex nut - but not absolutely
always.
A common 'collectorism' of recent years is to pronounce all discs that do not have squared shoulders on the screw post as reproductions, but clearly this is not true. Many of the repro discs do indeed share that feature (no squared shoulders), but it was one of the legitimate manufacturing variations of the period.
Another thing about discs that is as amazing as it is annoying is the incredible array of contractors and how they all seemed to miraculously find a screw post and nut that was just slightly different enough in size as to render it unique. Put 500 discs on a table with 500 nuts and a timer - then start matching them up - see how long it takes you to go from being excited about having a big pile of discs to thinking seriously about melting them all down for scrap.